作者:Dervilla M.X. Donnelly、Joseph O'Reilly、Judith Polonsky、G.W. van Eijk
DOI:10.1016/0040-4039(82)80154-8
日期:1982.1
FomajorinS and D, two new isocoumarins have been isolated from the sporophores and ageing cultures of Fomesannosus, and have been assigned structures and respectively on the basis of spectroscopic evidence of the natural products and their derivatives.
Regioselective [2 + 2 + 2] Alkyne Cyclotrimerizations to Hexasubstituted Benzenes: Syntheses of Fomajorin D and Fomajorin S
作者:Amir Tavakoli、Gregory B. Dudley
DOI:10.1021/acs.joc.4c00224
日期:——
cyclotrimerizations of diynes with alkynes. These convergent and efficient benzannulations are directed toward and lead to the first total syntheses of the illudalane sequiterpenes fomajorinD and S, in 10 and 7 steps, respectively, from commercially available dimedone. Control experiments suggest that hydrogen bonding may play a role in preorganizing the diyne and alkyne coupling partners for establishing